Contractors will commence a 3 week programme of work today (Thursday 6 March) to provide an extra carriageway on Chapel Ash Island.
Work has also begun this week on junction improvements at Penn Road and Lea Road and this is anticipated to last 8 weeks.
Sainsbury's are funding the whole road improvement project while the construction of the new Raglan Street store takes shape.
Earlier this year, work began to provide an additional lane on Ring Road St Mark's approach to Chapel Ash Island.
The work at Chapel Ash and Penn Road will take place during off peak hours, Monday to Friday between 9.30am and 3.30pm, and on non Wolves match weekends.
While this is being carried out, lane restrictions will be in place.
Sainsbury's started work on the new store last October and the development is expected to be completed in the summer.
As well as a large supermarket, the site will house an in store café, a petrol station, a 700 space car park, a recycling centre and a gym. Further works will include new pedestrian links across the ring road and shrubs, trees and other landscaping at the site.
Councillor Peter Bilson, Wolverhampton City Council's Cabinet Member for Economic Regeneration and Prosperity, said: "It is great to see the new Sainsbury's supermarket now taking shape.
"The store is a significant investment in our city, providing a huge boost to the economy and creating new jobs.
"These current highways work being carried out will complement the new store and it is important that the infrastructure is right to cope with the increased traffic.
"The work is being carried out off peak to minimise disruption and I thank everyone for their patience and co-operation while this is taking place."
- released: Thursday 6 March, 2014